You can bola it, but high levels will just die if you try to knock them out with a slingshot. Get a bow and tranq arrows if it's over 80 and you should be good. You'll get max levels with mejoberries unless it's like a 120 or above, at least according to my experience. The saddle is pretty easy to make too. It's good for harvesting fiber and thatch, and although it's slow, it has great stam I think. Don't try to fight large predators like Carnos unless your King Titan is a strong one. It's really not cut out for fighting carnivores, as it can also be pounced by raptors, which I found out the hard way (I'll never forget you, Randolph.) Overall, a decent alternative to a Parasaur. Paras are better in my opinion, but King Titans are easier to tame because of how slow they are. Be careful, though, because if there are at least 4 King Titans in an area, they will fight back if you attack. Otherwise, they'll just flee.
I’ve beat this guy with all my 500 tek dinos and it took like 20 minutes and I lost 25% of my tek dinos. If you tried and you died well I have to say use admin commands... and just type in... SummonTamed BionicRex_Character_Bp_C